Bumper for an automobile



FIG. 1 is a front, perspective view of a bumper for an automobile showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a right-side view, the left-side view being a mirror image thereof. 

The ornamental design for a bumper for an automobile, as shown and described. 